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房室结

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房室结
房室结在“2”
标识字符
拉丁文Nodus atrioventricularis
缩写AV node
MeSHD001283
TA98A12.1.06.004
TA23954
FMAFMA:9478
《解剖学术语》

房室结 (Atrioventricular node，A-V node)是正常情况下兴奋(神经电讯)由心房传至心室的唯一途径。它位于右心房科赫三角（triangle of Koch）的心内膜深面，其前端发出房室束。其主要功能是将窦房结(Sinoatrial node，S-A node)传来的兴奋发生短暂延搁再传向心室，保证心房收缩后再开始心室收缩。

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房室结
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